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There could be a few things wrong with the car but I own a 02 Mazda Protege ES and here are some things that I have gone through with mine. The EGR valve was recalled on these cars so that may cause the issue and may need to be replaced. Also I have had problems with the ignition coils in the car going bad and that causes the car to run rough and hesitate. I am replacing my second set of them with OEM coils as the cheap set I put in only lasted one year. If you leave the ignition coils go too long it can foul your catalytic converter eventually and that can cost a few hundred bucks to replace. If you don't have a check engine light on try some fuel injection cleaner and run a couple tank fulls of premium fuel and see if it might be a clogged injector. If the check engine light is on take it to a Autozone and they can pull the code for it, if the code shows P0301 Random Misfire that is the same code I had and replacing the coils fixed that issue. Hope this helps.

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16y ago

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